[0001] The present invention relates to a gas lighter equipped with a safety lock.
[0002] A conventional gas lighter is operated by pushing down its gas lever for ejecting
gas and at the same time by rotating its striker wheel for striking fire and igniting
the ejected gas, thereby permitting a small flame to shoot out. Such gas lighter is
very easy to handle, and even a child can use the device. Therefore, there is a fear
of a child getting burnt while playing with a gas lighter, and also there is a fear
of a fire breaking out.
[0003] The object of the present invention is to provide a gas lighter equipped with a safety
lock, thereby guaranteed free of such fears as described above.
[0004] To attain this object a gas lighter comprising a housing having a gas well contained
therein, a gas valve fixed to the inside of the housing and communicating with the
gas well, a gas ejection nozzle connected to the gas valve and fixed to the top of
the housing, a fire-striking wheel rotatably fixed to the top of the housing in the
vicinity of the gas ejection nozzle, a thumb-operated gas lever movably fixed to the
top of the housing in the vicinity of the fire-striking wheel and operatively connected
to the gas valve, the thumb-operated gas lever being responsive to thumb-push for
descending and opening the valve, thereby permitting the ejection of gas from the
gas ejection nozzle, and a windshield fixed to the top of the housing and surrounding
the gas ejection nozzle, is improved according to the present invention in that: there
is provided a safety lock in the form of slidable L-shaped stopper, one leg of which
is slidably connected to the gas lever; the other leg of the stop per being on the
top of the housing when the stopper is put in an inward position in which the stopper
is relatively near the windshield, thus preventing the descent of the gas lever, and
the other leg of the stopper being off from the top surface of the housing when the
stopper is put in an outward position in which the stopper is relatively remote from
the windshield, thus permitting the descent of the gas lever.
[0005] Other objects and advantages of the present invention will be better understood from
the following description of a gas lighter according to one embodiment of the present
invention, which is shown in the accompanying drawings:
Fig. 1 is a perspective view of a gas lighter equipped with a safety lock according
to the present invention;
Fig. 2 is a plan view of the slidable L-shaped stopper in its locking condition;
Fig. 3 is a cross section of the slidable L-shaped stopper taken along the line III-III
and as seen from the direction indicated by arrows;
Fig. 4 is a side view of the gas lighter in its locking condition;
Fig. 5 is a plan view of the slidable L-shaped stopper in its unlocking condition;
and
Fig. 6 is a side view of the gas lighter in its unlocking condition.
[0006] Referring to the drawings, a gas lighter comprises a housing 1 which contains a
gas well, a gas valve communicating with the gas well and other necessary parts. A
gas ejection nozzle (not shown) is connected to the gas valve and fixed to the top
of the housing 1. A fire-striking wheel 2 is rotatably fixed to the top of the housing
1 in the vicinity of the gas ejection nozzle. A thumb-operated gas lever 3 is movably
fixed to the top of the housing 1 in the vicinity of the fire-striking wheel 2. One
end of the gas lever 3 is connected to the gas valve for permitting the ejection of
gas from the gas ejection nozzle, and the other end of the gas lever 3 is made in
the form of thumb-push piece 3A. The thumb-operated gas lever 3 is responsive to
thumb-push for descending and opening the gas valve, thereby permitting the ejection
of gas from the gas ejection nozzle. A windshield is fixed to the top of the housing
1 to surround the gas ejection nozzle. A slidable L-shaped stopper 4 is attached to
the thumb-push piece 3A. One leg 4A of the L-shaped stopper 4 is slidably connected
to the thumb-push piece 3A of the gas lever 3, and the other leg 4B of ther stopper
4 stands on the top of the housing 1 when the stopper 4 is put in an inward position
in which the stopper 4 is relatively near the windshield (See Figs. 1, 2 and 4). The
other leg 4B of the stopper 4 is off from the top surface of the housing 1 when the
stopper 4 is put in an outward position in which the stopper 4 is relatively remote
from the windshield (See Figs. 5 and 6).
[0007] As best shown in Fig. 2 the thumb-push piece 3A has reentrancy opening on the side
of gas lever opposite to the windshield. As best shown in Fig. 3, the reentrancy has
slots made on its opposing side walls. One leg 4A of the slidable L-shaped stopper
4 has ridges on its opposite edges, and is slidably fitted in the reentrancy of the
gas lever with the ridges of the opposite leg edges inserted in the slots of the reentrancy.
Alternatively, the reentrancy may have ridges on its opposing side walls, and one
leg 4A of the slidable L-shaped stopper may have slots made on its opposite leg edges.
[0008] With this arrangement the other leg 4B of the stopper 4 is on the top of the housing
1 when the stopper 4 is pushed in the reentrancy of the gas lever, thus preventing
the descent of the gas lever for permitting a small fire to shoot out. The other leg
4B of the stopper 4 is off from the top surface of the housing 1 when the stopper
4 is drawn apart from the windshield, thus permitting the descent of the gas lever,
and hence permitting a small fire to shoot out.
[0009] As may be understood from the above, a gas lighter according to the present invention
assures in its locking condition that an accident which may be caused when a child
plays with the device, such as a burn or and accidental fire is prevented.
1. A gas lighter comprising a housing having a gas well contained therein, a gas valve
fixed to the inside of the housing and communicating with the gas well, a gas ejection
nozzle connected to the gas valve and fixed to the top of the housing, a fire-striking
wheel rotatably fixed to the top of the housing in the vicinity of the gas ejection
nozzle, a thumb-operated gas lever movably fixed to the top of the housing in the
vicinity of the fire-striking wheel and operatively connected to the gas valve, the
thumb-operated gas lever being responsive to thumb-push for descending and opening
the valve, thereby permitting the ejection of gas from the gas ejection nozzle, and
a windshield fixed to the top of the housing and surrounding the gas ejection nozzle,
characterized in that the gas lighter further comprises a slidable L-shaped stopper
whose one leg is slidably connected to the gas lever; the other leg of the stopper
being on the top of the housing when the stopper is put in an inward position in which
the stopper is relatively near the windshield, thus preventing the descent of the
gas lever, and the other leg of the stopper being off from the top surface of the
housing when the stopper is put in an outward position in which the stopper is relatively
remote from the windshield, thus permitting the descent of the gas lever.
2. A gas lighter according to Claim 1 wherein the thumb-operated gas lever has a
reentrancy opening on the side of gas lever opposite to the windshield, the reentrancy
having slots made on its opposing side walls and one leg of the slidable L-shaped
stopper having ridges on its opposite edges, and being slidably fitted in the reentrancy
of the gas lever with the ridges of the opposite edges inserted in the slots of the
reentrancy, whereby the other leg is on the top of the housing when the stopper is
pushed in the reentrancy of the gas lever, thus preventing the descent of the gas
lever, and the other leg is off from the top surface of the housing when the stopper
is drawn apart from the windshield, thus permitting the descent of the gas lever.
3. A gas lighter according to Claim 1 wherein the thumb-operated gas lever has a
reentrancy opening on the side of gas lever opposite to the windshield, the reentrancy
having ridges on its opposing side walls and one leg of the slidable L-shaped stopper
has slots made on its opposite leg edges, said one leg being slidably fitted in the
reentrancy of the gas lever with the ridges of the opposing side walls of he reentrancy
inserted in the slots of the one leg, whereby the other leg is on the top of the housing
when the stopper is pushed in the reentrancy of the gas lever, thus preventing the
descent of the gas lever, and the other leg is off from the top surface of the housing
when the stopper is drawn apart from the windshield, thus permitting the descent of
the gas lever.
